Weapon- In a South Manchester Suburb the word weapon is currently the word of choice to describe a 'fool'.
But also the word is also being used to congratulate fellow buddies when somthing comendable is carried out.
Its completely down to the tone of voice used.

Drinker 1 : 'I asked for a carling in a fosters glass. Not a carling in a carling glass' Pause and look of shame given across the table.. 'You Weapon'

Drinker 2 : 'Sorry mate'

Drinker 1 : 'Weapon'

Take note the word weapon was used for a second time, this is a kick in the balls to whoever the word weapon is aimed at.

A slang term for penis. This can be considered a weapon, since using it has consequences; sometimes minor, sometimes severe. It can damage or build your reputation, depending on what you are speaking of (ex: your sexual performance reputation.) In unusual or strange incidents, it can poke someone's eye out.